/* ===== 帮助与教程页 · page-faq ===== */

.page-faq {
  --faq-gap: clamp(18px, 3vw, 30px);
  padding-bottom: var(--sp-6);
}

.page-faq a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 217, 232, 0.35);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq a:hover,
.page-faq a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: var(--sp-5) 0 var(--sp-4);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(420px, 55%);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(47, 217, 232, 0));
}

.page-faq .faq-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(27px, 5.6vw, 50px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 22ch;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--text);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-bottom-color: var(--line);
  clip-path: var(--cut-tr);
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 主栏 + 目录 ---------- */

.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding-top: var(--sp-4);
}

.page-faq .faq-toc {
  border: 1px solid var(--line);
  background: var(--ink-800);
  clip-path: var(--cut-tr);
  padding: 16px;
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  font-size: 13px;
  white-space: nowrap;
  color: var(--muted);
  border: 0;
  border-left: 2px solid transparent;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--text);
  background: rgba(47, 217, 232, 0.07);
  border-left-color: var(--cyan);
  border-bottom-color: transparent;
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  opacity: 0.75;
}

.page-faq .faq-stream {
  min-width: 0;
}

/* ---------- 章节 ---------- */

.page-faq .faq-block + .faq-block {
  position: relative;
  margin-top: var(--sp-5);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--line);
}

.page-faq .faq-block + .faq-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .section-head {
  margin-bottom: 18px;
}

.page-faq .section-head__note {
  color: var(--muted);
}

/* ---------- 折叠卡片 ---------- */

.page-faq .faq-item {
  margin-top: 12px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  clip-path: var(--cut-tr);
  transition: background 0.24s ease, border-color 0.24s ease;
}

.page-faq .faq-item[open] {
  background: var(--ink-700);
  border-color: rgba(47, 217, 232, 0.4);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: 2px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2013";
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__body {
  padding: 16px 18px 20px;
  border-top: 1px solid rgba(30, 51, 80, 0.85);
}

.page-faq .faq-item__body > p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .faq-item__body > p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__body strong {
  color: var(--cyan-soft);
}

/* ---------- 步骤 ---------- */

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps > li {
  position: relative;
  padding-left: 46px;
  margin-bottom: 18px;
}

.page-faq .faq-steps > li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-steps > li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-faq .faq-steps > li::after {
  content: "";
  position: absolute;
  left: 26px;
  top: 10px;
  width: 12px;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-steps > li strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  color: var(--text);
}

.page-faq .faq-steps > li p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 权重条 ---------- */

.page-faq .faq-weights {
  margin-top: 18px;
  padding: 16px;
  background: rgba(18, 32, 54, 0.7);
  border: 1px solid var(--line);
  clip-path: var(--cut-bl);
}

.page-faq .faq-weights__caption {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-weight {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 12px;
  margin-bottom: 12px;
}

.page-faq .faq-weight:last-child {
  margin-bottom: 0;
}

.page-faq .faq-weight__label {
  font-size: 13px;
  color: var(--text);
}

.page-faq .faq-weight__value {
  font-size: 13px;
  color: var(--cyan);
}

.page-faq .faq-weight__track {
  grid-column: 1 / -1;
  height: 8px;
  background: var(--line);
  overflow: hidden;
}

.page-faq .faq-weight__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-soft));
}

.page-faq .faq-weight__fill--40 {
  background: linear-gradient(90deg, rgba(47, 217, 232, 0.45), rgba(134, 238, 246, 0.75));
}

/* ---------- 图文分栏 ---------- */

.page-faq .faq-split {
  display: grid;
  gap: 20px;
}

.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.85) brightness(0.86);
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 资料回查列表 ---------- */

.page-faq .faq-archive {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-archive__item {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-archive__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-archive__title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .faq-archive__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 升级到咨询 ---------- */

.page-faq .faq-escalate {
  padding: 22px 20px;
  background: linear-gradient(135deg, rgba(255, 106, 31, 0.12), rgba(11, 20, 36, 0.92));
  border: 1px solid rgba(255, 106, 31, 0.38);
  clip-path: var(--cut-tr);
}

.page-faq .faq-escalate__title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
}

.page-faq .faq-escalate__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-escalate__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-escalate__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

.page-faq .faq-escalate__text {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-escalate__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-escalate__tail {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: start;
  }

  .page-faq .faq-archive__item {
    grid-template-columns: 108px minmax(0, 1fr);
    padding: 18px 0;
  }

  .page-faq .faq-item > summary {
    padding: 18px 22px;
  }

  .page-faq .faq-item__body {
    padding: 18px 22px 22px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-stream {
    order: 1;
    flex: 1 1 auto;
    min-width: 0;
  }

  .page-faq .faq-toc {
    order: 2;
    flex: 0 0 236px;
    position: sticky;
    top: calc(var(--topbar-h) + 22px);
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-faq .faq-toc__link {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item,
  .page-faq .faq-toc__link {
    transition: none;
  }
}